After divorcing Antonio Castillo Margot opened “Margot de Taxco” in 1948.  According to Penny Morrill and Carole Berk in “Mexican Silver”, Margot designed everything that her company produced and had book of instructions and drawings for each piece of jewelry detailing their construction and finishing.

Though her taller (workshop) also produced stunning repousse silver, she is best known for her champleve enamel work. Champleve enamel is an enameling technique in which troughs or cells are carved, etched, die struck, or cast into the surface and filled with vitreous enamel. It is similar in appearance to cloisonné enamel however in cloisonné the cells are created by soldering metal strips to a base to create the cells. In the case of Margot’s

jewelry the designs were die-struck. Dies were created to stamp the designs out of silver and the die-making was a critical and detailed process of its own.

Margo’s designs bear the influences of pre-Columbian motifs, the Art Deco style, and Japanese Art (which can especially be seen in her use of fish and wave motifs).

Her design and marketing philosophy were spelled out on her business card which read: “As the stars are to the Night, so are the Jewels to the Woman”.

Many silversmiths who went on to open their own tallers worked for Margot including Sigi Pineda, the most well-known, who worked for her four years. Other silversmiths who worked for Margot, whose work is starting to be better-known, include Melecio Rodriquez and Miguel Melendez.

A fire in 1960 forced Margot to move her taller and it appears that she began to have financial difficulties after this disaster. Although continuing in business until the mid-70’s, her business was eventually taken over by the government to pay her debts. Margot gave her molds and dies to her silversmiths to pay her debts to them and, as a result, work is still being produced from Margot’s designs.